Brake-shoe.



PATENTED JULY 5; 1904.

E. W. ROBINSON.

BRAKE SHOE.

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4/ N55 5 1 VENT LLLL ua'M/MHM we-*3 \D I BY A TTORNE m UNITED STATES Patented July 5, i904.

EDVARI) W. ROBINSON, OF NEW YORK, N.

BRAKE-SHOE.

EPECIFICATION forming part of Letters Patent No. 764,306, dated July 5, 1904.

Application filed January 26, 1904. Serial No. 190.643. (N0 model.)

1'0 all whom it may concern.-

Be it known that I, EDWARD W. ROBINSON, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Improvement in Brake-Shoes, of which the following is a specification.

This invention relates to improvements in railway-brake shoes, and especially to a brakeshoe which is adapted to receive and to have attached to the front or gripping portion thereof the back or rear portion of a partiallyworn shoe, so that partially-worn shoes may be entirely used up by applying them to new brake-shoes, thus saving a waste and utilizing worn portions of brake-shoes, which at the present time are rendered unfit for service and discarded.

To this end it consists of a brake-shoe of ordinary construction having an attachinglug on the back side thereof through which runs an opening for receiving the attachingpin of the brake-head and for other purposes, which will be hereinafter more fully set forth. The gripping-surface of the shoe is provided with a socket into which extends a flexible pin or staple adapted to be bent upwardly by the lug when the lug on the back of a partially-worn shoe is inserted in the socket, the pin or staple being arranged to take into the opening which runs through the attachinglug. The gripping-face is preferably provided with an offset contiguous to and opening into said socket, but not extending as far into the shoe as the socket itself, the purpose of this being to enable the attaching-lug to be inserted within the brake-shoe, so that the pin may be inserted in the opening in the at taching-lug in the process of attaching a partially-worn shoe to an ordinary brake-shoe; but it is not intended that the invention be limited to this specific form, as it is only necessary that the socket be of such a Width that the attaching-lug when being inserted therein may receive in the opening therein the flexible pin.

1n the drawings herewith accompanying and forming a part of this application, Figure 1 is a sectional View of my improved brakeshoe. Fig. 2 is a sectional view of the same,

showing a partially-worn shoe in the process of being attached thereto. Fig. 3 is a sectional view showing m y improved device with a partially-worn brake-shoe in position, and Fig. 1- is a bottom plan view of Fig. 1.

Same letters of reference refer to like parts in all the figures.

In said drawings, A represents a brakeshoe of the ordinary construction, provided with guiding or looking lugs B on the back thereof. Also on the back thereof is an attaching-lug C, provided with a lateral open ing D. The gripping-surface of said brakeshoe is provided with a socket 1E, extending partially into said shoe. Made integral with said shoe and adapted to extend into said socket E is a pin or staple F, preferably made of annealed or malleable iron, so that the same may be bent upwardly when desired. At one side of said opening and connected thereto is an offset G. Thegripping-face of said shoe is also provided with sockets H to receive the lugs B and assist in holding the partially-worn brake-shoe in position when it is desired to insert such in a new brake-shoe. When the brake-shoe as shown in Fig. 1 becomes so worn that it will not perform its work satisfactorily, the same is removed from the brakehead and a new brake-shoe attached thereto. The partially-worn brake-shoe is then placed against the surface of the new shoe, the attaching-lug being placed in the olfset, as shown in Fig. 2, the pin F being inserted in the opening 1) in the attaching-lug C. The partiallyworn shoe is then driven into position, and while being so driven into position the annealed-or malleable-iron pin orstaple F is bent upwardly, as shown in Fig. 3, and impinges against the top and bottom of the opening I) in the attaching-lug C, and consequently locks the partially-worn shoe tightly in position, the pin remaining bent, as shown in Fig. 3 of the drawings. The openingl) in the attaching-lug C is spaced apart somewhat above the top of the shoe, so as to allow for the easy insertion of the pin or staple F therein when the partially-worn shoe is being inserted in anew shoe. The guiding or looking lugs B, [itting into the recesses H, further prevent the partially-worn shoe from being displaced when in use.

The advantages of my invention are that it provides means for using up partially-worn shoes, for by the insertion of a partially-Worn shoe Within a new shoe the partially-Worn one is entirely Worn out, saving Waste of material which under the present system is thrown into the scrap-heap.

Having thus described my invention and its use, I claim- 1. A brake-shoe provided With a socket in its gripping-face and a flexible pin secured to said brake-shoe and projecting laterally across said socket.

2. A brake-shoe provided With a socket in the gripping-face, an oflset at one side of said socket, and a flexible pin secured to said shoe and projecting into said socket.

3. A brake-shoe having an attaching-lug With an opening running therethrough, a socket in the gripping-face of said shoe, an offset at one side of said socket, and a flexible pin secured to said shoe and projecting into said socket.

&. Abrake-shoe having on the top an attaching-lug With an opening running therethrough, said opening being spaced apart above the top of the shoe, a socket in the gripping-face of said shoe and a flexible pin secured to said shoe and extending into said socket.

5. In a brake-shoe, an attaching-lug on the back thereof having an opening running therethrough, locking-lugs also on the back thereof, a socket in the gripping-face, a flexible pin secured to said shoe and projecting into said socket, said pin being adapted to enter the opening in the attaching-lug, and be bent upwardly and held in position thereby When the attaching-lug of a partially-Worn shoe is inserted in said socket, the grippingface having complemental recesses for receiving said locking-lugs.

In testimony WhereofI have signed my name to this specification, in presence of two subscribing Witnesses, this 29th day of December.

ED'WARD IV. ROBINSON. In presence of* DAVID C. CLARKE, FRED S. BURGY. 

